ML13235A009
| ML13235A009 | |
| Person / Time | |
|---|---|
| Site: | University of Michigan |
| Issue date: | 08/19/2013 |
| From: | Driscoll M University of Michigan |
| To: | Document Control Desk, NRC/FSME |
| References | |
| Download: ML13235A009 (4) | |
Text
University of Michigan Occupational Safety & Environmental Health Campus Safety Services Building occ0E pational Safety &
1239 Kipke Drive, Ann Arbor, MI 48109-1010 Phone: 734 647-1143
- Fax: 734 763-1185 August 19, 2013 Document Control Desk U.S. Nuclear Regulatory Commission Two White Flint North 11545 Rockville Pike (Mail Code: 03H8)
Rockville, Maryland 20852-2738 RE:
Final Status Survey - Background Count Rate Correction University of Michigan - Ford Nuclear Reactor Docket 50-2 / License R-28 Decommissioning Branch:
Please find enclosed a corrected data sheet for the Ludlum Model 44-10 gamma scintillation detector (S/N PR1 94988) used to measure the exposed soil in the first floor trenches ('Soil-2' survey unit) located within the Ford Nuclear Reactor (FNR).
The correct background count rate (cpm) for the Ludlum Model 44-10 gamma scintillation detector (S/N PRI 94988) used on December 6, 2012 was 10259 cpm. Please refer to the corrected Final Status Survey Data Sheet enclosed with this correspondence.
Please do not hesitate to contact me at OSEH / Radiation Safety Service [(734) 647-2251]
should you have any questions or comments regarding this revised FSS data sheet.
Sincerely, Mark L. Driscoll Director / Radiation Safety Officer Radiation Safety Service / OSEH MLD/mld NRCFNRR-28FSSSoil2BackgroundO8l913 cc:
Terry Alexander, Executive Director, OCS Volker Sick, Associate Vice President, OVPR Chair FNR-DRC Theodore Smith, FNR Project Manager, NRC Headquarters (Mailstop T-8F5)
Jeremy Tapp, Health Physicist, NRC Region III FNR Decommissioning File
Ameriphysics LLC.
Final Status Survey Data Sheet Beta Survey Results Building:
Survey Unit 51'-
Page of Survey Unit Description Survey Completed by:
-4 Date:
Survey Completed by:
Date:.
Comments:
Reviewed By:
K)_3 Date
Ameriphysics Daily Respose Check Form Instrument Model Instu.ent Serial Number ll Calibration Due Date Project Eficienc-2221 202370 9124/13 4.92%
Detector Model rDetector Serial Number etectr Area (cm-)
High Voltage Source Isotope I
Sourre Serial Number II Source Activity (dpm)
[
Source Reproducibility Cs-137 No ID 55 uR/hr 32975 to 49462
_M/ _YTim Count Rate HGross CutRate Net Count Rate SAT/UNSAT..
metiniil DateD ie-
Background
Grs Count e~t~
Comments
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1.7 m SURVEY MAP BUILDING: FNR SURVEY UNIT NUMBER: Soil-2 PAGE -3 OF 9 CLASS: 1 SURVEY TYPE (CHECK ONE):
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